Children climbing on an open oven door can tip the range. The manual states clearly: "Failure to install the anti-tip bracket will result in death or serious injury."
For the Viking Professional 30-inch Open Burner Gas Range (Model VGIC3054BSS) viking range vgic3054bss manual
A pull-out drip tray with roller-bearing glides is located beneath the burners to catch spills. Common Troubleshooting Children climbing on an open oven door can tip the range